problema con modulo

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problema con modulo

ho scritto un modulo che dovrebbe creare un content ma quando vado su administer site configuration e ci schiaccio sopra mi compare :

Fatal error: require_once() [function.require]: Failed opening required 'sites/all/modules/contenitore/system.admin.inc' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/miodrupal/includes/menu.inc on line 345

qualcuno mi sa aiutare???

il codice e':

<?php
function contenitore_all() {
 
// content variable that will be returned for display
 
$page_content = '';
 
$query = "SELECT vid,title from drupal.node";
 
// get the links (no range limit here)
 
$queryResult db_query($query);
  while (
$links = db_fetch_object($queryResult)) {
   
$page_content .= l($links->title, 'node/'.$links->vid).'<br />';
  }
  if (
$page_content == '') {
   
// no content from a week ago, let the user know
   
$page_content = "No events occurred on this site on this date in history.";
  }
  return
$page_content;
}
?>

<?php
function contenitore_menu() {
 
$items = array();
 
//this was created earlier in tutorial 7.
 
$items['admin/settings/contenitore'] = array(
   
'title' => 'Covvvvvvvvitjhjgle settings',
   
'description' => 'Description of your contenitore date settings control',
   
'page callback' => 'drupal_get_form',
   
'page arguments' => array('contenitore_admin'),
   
'access arguments' => array('access administration pages'),
   
'type' => MENU_NORMAL_ITEM,
   );
 
//this is added for this current tutorial.
 
$items['contenitore'] = array(
   
'title' => 'Titolo contenitore',
   
'page callback' => 'contenitore_all',
   
'access arguments' => array('access contenitore content'),
   
'type' => MENU_CALLBACK
 
);
  return
$items;
}
?>

grazie a tutti